subset: Subset an MCMC object

In mcmcr: Manipulate MCMC Samples

Description

Subsets an MCMC object by its chains, iterations and/or parameters.

Usage

## S3 method for class 'mcmcarray'
subset(x, chains = NULL, iters = NULL, iterations = NULL, ...)

## S3 method for class 'mcmcr'
subset(
  x,
  chains = NULL,
  iters = NULL,
  pars = NULL,
  iterations = NULL,
  parameters = NULL,
  ...
)

## S3 method for class 'mcmcrs'
subset(
  x,
  chains = NULL,
  iters = NULL,
  pars = NULL,
  iterations = NULL,
  parameters = NULL,
  ...
)

Arguments

x	The MCMC object to subset
chains	An integer vector of chains.
iters	An integer vector of iterations.
iterations	An integer vector (or NULL) of the iterations to subset by.
...	Unused.
pars	A character vector of parameter names.
parameters	A character vector (or NULL) of the parameters to subset by.

Methods (by class)

• mcmcarray: Subset an mcmcarray object

• mcmcr: Subset an mcmcr object

• mcmcrs: Subset an mcmcrs object

See Also

universals::split_chains()

Examples

subset(mcmcr_example,
  chains = 2L, iters = 1:100,
  pars = c("beta", "alpha")
)

Example output

$beta
          [,1]     [,2]
[1,] 0.7591235 1.759124
[2,] 1.7591235 2.759124

nchains:  1 
niters:  100 

$alpha
[1] 3.044835 4.044835

nchains:  1 
niters:  100 

mcmcr documentation built on Sept. 7, 2021, 1:07 a.m.